title: Substituted 1,3-bis(imino)isoindole diols: a new class of proton transfer dyes.
abstract: A new class of excited-state intramolecular proton transfer (ESIPT) dyes based on a 1,3-bis(imino)isoindole diol motif has been prepared. These molecules exhibit orange emission (∼600 nm) with a large apparent Stokes shift (>6000 cm(-1)) and quantum efficiencies up to 45%. Selective modification of the substituents can be used to shift the equilibrium between the enol and keto forms of the molecule in both the ground and excited states.
authors.affiliation: Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States.
authors.forename: Kenneth
authors.initials: K
authors.lastname: Hanson
authors.forename: Niral
authors.initials: N
authors.lastname: Patel
authors.forename: Matthew T
authors.initials: MT
authors.lastname: Whited
authors.forename: Peter I
authors.initials: PI
authors.lastname: Djurovich
authors.forename: Mark E
authors.initials: ME
authors.lastname: Thompson